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Deerfield Mgmt Iii, L.p.

LRMR
DIRECTOR · LARIMAR THERAPEUTICS, INC. · CIK 0001610540
FILING MIX · LIFETIME61%/39%
BUYS
19
SELLS
12
TOTAL VALUE
$157.31M
COMPANIES
3
ACTIVE SINCE
Jun 2021
HOLDINGS NOW
11,852,784
AVG SELL PX
$18.26
TRADE KIND
SHOWING 31 / 31
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
21 backtested trades · 8 horizons · 26 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Deerfield Mgmt Iii, L.p., measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d21+71.43%-4.24%-0.44%-3.80%+0.29%—
14d21+66.67%-4.22%+0.04%-4.26%-10.01%—
30d21+61.90%-13.10%-0.09%-13.01%-10.96%—
60d21+52.38%-13.33%+2.25%-15.58%-20.88%—
90d21+71.43%-14.77%+4.00%-14.09%-30.99%—
180d21(4 pending)+88.24%-9.94%+5.58%-15.52%-18.01%—
1y21(7 pending)+64.29%-53.27%+11.41%-64.69%-67.04%—
2y21(15 pending)+16.67%-41.00%+24.56%-65.56%-74.88%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
LRMR · 6,207,982 shares · as of Feb 27, 2026
02,655,7395,311,4797,967,21810,622,95720222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 19 buys / 12 sellsCOVERAGE · 20 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
1,084,012$5.00$5.42M10,622,957Feb 27, 2026Mar 2, 2026 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
831,978$5.00$4.16M8,153,107Feb 27, 2026Mar 2, 2026 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
1,084,010$5.00$5.42M10,622,928Feb 27, 2026Mar 2, 2026 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
2,000,000$5.00$10.00M6,207,982Feb 27, 2026Mar 2, 2026 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
2,599,932$3.20$8.32M7,321,129Jul 31, 2025Aug 4, 2025 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
3,387,539$3.20$10.84M9,538,945Jul 31, 2025Aug 4, 2025 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
3,387,529$3.20$10.84M9,538,918Jul 31, 2025Aug 4, 2025 ↗View →
SPRY
ARS PHARMACEUTICALS, INC.
SALE
370,075$18.46$6.83M4,887,254Jun 27, 2025Jul 1, 2025 ↗View →
SPRY
ARS PHARMACEUTICALS, INC.
SALE
370,074$18.46$6.83M4,887,254Jun 27, 2025Jul 1, 2025 ↗View →
SPRY
ARS PHARMACEUTICALS, INC.
SALE
9,553$17.77$169.8K5,257,328Nov 12, 2024Nov 13, 2024 ↗View →
SPRY
ARS PHARMACEUTICALS, INC.
SALE
9,554$17.77$169.8K5,257,329Nov 12, 2024Nov 13, 2024 ↗View →
SPRY
ARS PHARMACEUTICALS, INC.
SALE
7,853$17.16$134.8K5,266,883Nov 12, 2024Nov 13, 2024 ↗View →
SPRY
ARS PHARMACEUTICALS, INC.
SALE
7,854$17.16$134.8K5,266,881Nov 12, 2024Nov 13, 2024 ↗View →
SPRY
ARS PHARMACEUTICALS, INC.
SALE
223,632$18.15$4.06M5,274,736Nov 11, 2024Nov 13, 2024 ↗View →
SPRY
ARS PHARMACEUTICALS, INC.
SALE
40,596$17.45$708.4K5,498,367Nov 11, 2024Nov 13, 2024 ↗View →
SPRY
ARS PHARMACEUTICALS, INC.
SALE
40,596$17.45$708.4K5,498,368Nov 11, 2024Nov 13, 2024 ↗View →
SPRY
ARS PHARMACEUTICALS, INC.
SALE
223,632$18.15$4.06M5,274,735Nov 11, 2024Nov 13, 2024 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
1,430,205$8.74$12.50M4,207,982Feb 16, 2024Feb 16, 2024 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
1,430,206$8.74$12.50M6,151,406Feb 16, 2024Feb 16, 2024 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
1,430,206$8.74$12.50M6,151,389Feb 16, 2024Feb 16, 2024 ↗View →
GUTS
FRACTYL HEALTH, INC.
SALE
1,625,699——0Feb 6, 2024Feb 6, 2024 ↗View →
GUTS
FRACTYL HEALTH, INC.
SALE
164,612——0Feb 6, 2024Feb 6, 2024 ↗View →
GUTS
FRACTYL HEALTH, INC.
PURCHASE
76,706——834,254Feb 6, 2024Feb 6, 2024 ↗View →
GUTS
FRACTYL HEALTH, INC.
PURCHASE
757,548——757,548Feb 6, 2024Feb 6, 2024 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
2,777,777$3.15$8.75M4,721,197Sep 16, 2022Sep 20, 2022 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
2,777,777$3.15$8.75M2,777,777Sep 16, 2022Sep 20, 2022 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
2,777,777$3.15$8.75M4,721,200Sep 16, 2022Sep 20, 2022 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
2,777,777$3.15$8.75M4,721,183Sep 16, 2022Sep 20, 2022 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
228,569$8.75$2.00M1,943,406Jun 30, 2021Jul 2, 2021 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
228,570$8.75$2.00M1,943,420Jun 30, 2021Jul 2, 2021 ↗View →
LRMR
LARIMAR THERAPEUTICS, INC.
PURCHASE
228,571$8.75$2.00M1,943,423Jun 30, 2021Jul 2, 2021 ↗View →
Other insiders · LRMR
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About this filer
CIK 0001610540
ROLE
Director
PRIMARY
LRMR
COMPANIES
3
ACTIVE SINCE
Jun 2021
MARKETPEEL · /INSIDER/0001610540DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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